P1555

P1555 OBD Code Definition:
P1555 Electronic Variable Orifice Output
P1555 OBD Code Description:

Possible Symptoms

  • Reduced power output
  • Limp mode

Possible Causes

  • Boost Pressure too High
  • Hoses/Pipes incorrect connected, disconnected, blocked or leaking
  • Charger Pressure Control defective
    • VNT (variable nozzle turbo): nozzles stuck
  • Solenoid Valve for Boost Pressure Control  defective

Possible Solutions

  • Check Hoses/Pipes to/between Components
  • Check Solenoid Valve for Boost Pressure Control
  • Check / Clean / Replace Charge Pressure Control
    • Check / Clean mechanism for variable nozzles

 

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